Use ERC20._spendAllowance in CustomToken

[SKYBITDev3]

Can the code

axelar-examples/examples/evm/its-custom-token/CustomToken.sol

Lines 82 to 88 in 1c8c8fa

	function _spendAllowance(address sender, address spender, uint256 amount) internal override (ERC20, InterchainTokenStandard) {
	uint256 _allowance = allowance(sender, spender);
	if (_allowance != UINT256_MAX) {
	_approve(sender, spender, _allowance - amount);
	}
	}

be replaced by

function _spendAllowance(address sender, address spender, uint256 amount) internal override (ERC20, InterchainTokenStandard) {
    ERC20._spendAllowance(sender, spender, amount);
 } 

?

Or was there a reason not to use the built-in _spendAllowance in ERC20?